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authorPeter Moody <pmoody@google.com>2012-06-14 21:04:36 +0400
committerMimi Zohar <zohar@linux.vnet.ibm.com>2012-09-13 22:48:44 +0400
commite7c568e0fd0cf6d9c8ab8ea537ba8f3a3ae7c3d8 (patch)
treef920b77b98c38e28dd2974564db102160e59f3e9 /security/integrity/ima/ima_main.c
parent45e2472e67bf66f794d507b52e82af92e0614e49 (diff)
downloadlinux-e7c568e0fd0cf6d9c8ab8ea537ba8f3a3ae7c3d8.tar.xz
ima: audit log hashes
This adds an 'audit' policy action which audit logs file measurements. Changelog v6: - use new action flag handling (Dmitry Kasatkin). - removed whitespace (Mimi) Changelog v5: - use audit_log_untrustedstring. Changelog v4: - cleanup digest -> hash conversion. - use filename rather than d_path in ima_audit_measurement. Changelog v3: - Use newly exported audit_log_task_info for logging pid/ppid/uid/etc. - Update the ima_policy ABI documentation. Changelog v2: - Use 'audit' action rather than 'measure_and_audit' to permit auditing in the absence of measuring.. Changelog v1: - Initial posting. Signed-off-by: Peter Moody <pmoody@google.com> Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Diffstat (limited to 'security/integrity/ima/ima_main.c')
-rw-r--r--security/integrity/ima/ima_main.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c
index 5da08b75d367..73c9a268253e 100644
--- a/security/integrity/ima/ima_main.c
+++ b/security/integrity/ima/ima_main.c
@@ -156,8 +156,8 @@ static int process_measurement(struct file *file, const unsigned char *filename,
if (!ima_initialized || !S_ISREG(inode->i_mode))
return 0;
- /* Determine if in appraise/measurement policy,
- * returns IMA_MEASURE, IMA_APPRAISE bitmask. */
+ /* Determine if in appraise/audit/measurement policy,
+ * returns IMA_MEASURE, IMA_APPRAISE, IMA_AUDIT bitmask. */
action = ima_get_action(inode, mask, function);
if (!action)
return 0;
@@ -171,7 +171,8 @@ static int process_measurement(struct file *file, const unsigned char *filename,
goto out;
/* Determine if already appraised/measured based on bitmask
- * (IMA_MEASURE, IMA_MEASURED, IMA_APPRAISE, IMA_APPRAISED) */
+ * (IMA_MEASURE, IMA_MEASURED, IMA_APPRAISE, IMA_APPRAISED,
+ * IMA_AUDIT, IMA_AUDITED) */
iint->flags |= action;
action &= ~((iint->flags & IMA_DONE_MASK) >> 1);
@@ -202,6 +203,8 @@ static int process_measurement(struct file *file, const unsigned char *filename,
if (action & IMA_APPRAISE)
rc = ima_appraise_measurement(iint, file,
!pathname ? filename : pathname);
+ if (action & IMA_AUDIT)
+ ima_audit_measurement(iint, !pathname ? filename : pathname);
kfree(pathbuf);
out:
mutex_unlock(&inode->i_mutex);